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Date Released – 2026-02-02
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Features
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Add SIP Keep-alive Mode configuration to enable the phone to keep alive by sending SIP Option.
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Add VPN file protection mechanism.
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Added "Sync with phone" in EXP Backlight Active Level configuration.
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Add Direct Park and Group Park options in the TalkingIncoming status on the Softkey layout page.
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Add display of the Wi-Fi generation for the currently connected WiFi. (V2+ only)
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Add RTP Status to the Talking call status on the Softkey layout page. The phone can display call quality statistics during a call.
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Bug Fixes
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Unify the value definitions for Missed Calls
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Compatibility with special characters "&" in XML files
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Fixed an issue where the phone will restart after performing a ping domain name
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Fixed the issue where the Text Logo configuration did not wrap.
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Fixed an issue that the LCD did not update the caller ID.
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Fixed the issue that the Video page disappears after clicking the SIP page on the web page.
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Fixed an issue that Blind Transfer failed.
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Fixed an issue that the volume level 5-level 14 sound did not change noticeably.
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Fixed the one-way media issue in ZRTP call by adding the zrtp-hash field in SDP.
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Fixed an issue that the encryption type in WiFi information was incorrectly displayed.
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Fixed an issue that the available recording duration was incorrect.
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Fixed some LDAP issues.
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Fixed an issue that the phone did not switch to a higher-priority server for registration after the SRV host priority changed and the DNS TTL expired.
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Fixed the issue of incorrect time zone.
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Fixed the issue that when input Field type is IP and input method is 123, pressing the * key on the keyboard displays the input ‘*’ instead of ‘.’.
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Fixed the issue that the SIP domain name resolution of the phone would fail due to DNS1 not being configured.
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Expansion Module Firmware
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CIP200 – 2.0.5.53 = https://firmware.conf.ws/cip/2.0.5.53/fw46.rom
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CIP200V2 – 2.0.4.24 = https://firmware.conf.ws/cip/2.0.4.24/fw46M.rom
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Firmware Links:
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230v2 / 250v2 / 270v2 = https://firmware.conf.ws/cip/2.42.6.7.106/fw520U.rom
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230v1 = https://firmware.conf.ws/cip/2.42.6.7.106/fw500M.rom
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250v1 / 270v1 = https://firmware.conf.ws/cip/2.42.6.7.106/fw520M.rom